Journal ArticleDOI
Cross-coupled microstrip hairpin-resonator filters
TLDR
In this paper, a new class of cross-coupled planar microwave filters using microstrip hairpin resonators is introduced, and the theoretical and experimental performance of these filters are investigated in the light of full-wave electromagnetic simulations.Abstract:
A new class of cross-coupled planar microwave filters using microstrip hairpin resonators is introduced. The realization of bath the canonical and the cascaded quadruplet (CQ) filters is feasible. Coupling characteristics of four basic coupling structures encountered in this class of filters are investigated in the light of full-wave electromagnetic (EM) simulations. A four-pole cross-coupled filter of this type is designed and fabricated. Both the theoretical and experimental performance is presented.read more
Citations
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Journal ArticleDOI
Performance of a planar filter using a 0/spl deg/ feed structure
TL;DR: In this paper, a 0/spl deg/feed structure was proposed for a cross-coupled filter and a new lumped-circuit model for a coupled resonator filter was proposed to take into account the effects of this feed structure.
Journal ArticleDOI
Design of microstrip bandpass filters with multiorder spurious-mode suppression
TL;DR: In this paper, a bandpass filter design method for suppressing spurious responses in the stopband by choosing the constitutive resonators with the same fundamental frequency, but staggered higher order resonant frequencies is proposed.
Journal ArticleDOI
Wide-stopband microstrip bandpass filters using dissimilar quarter-wavelength stepped-impedance resonators
TL;DR: In this article, a wide-stopband and compact microstrip bandpass filters (BPFs) are proposed using various dissimilar quarter-wavelength stepped-impedance resonators (SIRs) for multiple spurious suppression.
Journal ArticleDOI
Design of quasi-elliptic function filters with a dual-passband response
Jen-Tsai Kuo,Hung-Sen Cheng +1 more
TL;DR: In this paper, the authors used compact miniaturized hairpin resonators to design cross-coupled filters with a dual-passband response of elliptic function type and treated them as a stepped impedance resonator in analysis.
Journal ArticleDOI
A microstrip elliptic function filter with compact miniaturized hairpin resonators
TL;DR: In this paper, a four-pole elliptic function bandpass filter is designed using compact miniaturized microstrip hairpin resonators and the full-wave simulator IE3D is used to design the resonator and to calculate the coupling coefficients of the three basic coupling structures.
References
More filters
Journal ArticleDOI
Couplings of microstrip square open-loop resonators for cross-coupled planar microwave filters
TL;DR: In this article, a cross-coupled planar microwave filter using coupled microstrip square open-loop resonators is proposed, and a method for the rigorous calculation of the coupling coefficients of three basic coupling structures encountered in this type of filter is developed.
Journal ArticleDOI
Synthesis of Reactance 4-Poles Which Produce Prescribed Insertion Loss Characteristics: Including Special Applications To Filter Design
Journal ArticleDOI
Filters with Single Transmission Zeros at Real or Imaginary Frequencies
TL;DR: In this paper, a unified theory is presented for the synthesis of exactly equiripple low-pass prototypes having: a) one simple pole of attenuation at a real frequency; or b) a single pair of real-axis transmission zeros.
Journal ArticleDOI
Miniaturized hairpin resonator filters and their application to receiver front-end MICs
TL;DR: In this article, the fundamental characteristics of miniaturized hairpin resonators having parallel coupled lines are described and applied to bandpass filters and receiver front-end microwave integrated circuits (MICs).
Journal ArticleDOI
Hairpin-Line and Hybrid Hairpin-Line/Half-Wave Parallel-Coupled-Line Filters
E.G. Cristal,S. Frankel +1 more
TL;DR: In this paper, a new class of microwave filters, hairpin line and hybrid hairpin-line/half-wave parallel-coupled-line filters, was reported, which is particularly well suited for microstrip and TEM printed-circuit realizations because grounding of the filter resonators is generally not required.
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